TetraPro™ Tropical Color Crisps provide advanced nutrition for the discerning fish-keeper. This nutritionally balanced diet floats longer and feeds cleaner than ordinary flakes; leaving less waste in the aquarium. Each crisp features a high content of natural color enhancers and special ingredient that ensure the full development of beautiful and rich coloration. TetraPro Tropical Color Crisps support fish immune health with Biotin and are created through a low-heat process that preserves more of the natural ingredients.